DBCommand.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Data / System / Data / Common / DBCommand.cs / 1305376 / DBCommand.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
// [....]
//----------------------------------------------------------------------------- 
 
namespace System.Data.Common {
 
    using System;
    using System.ComponentModel;
    using System.Data;
 
    public abstract class DbCommand : Component, IDbCommand { // V1.2.3300
        protected DbCommand() : base() { 
        } 

        [ 
        DefaultValue(""),
        RefreshProperties(RefreshProperties.All),
        ResCategoryAttribute(Res.DataCategory_Data),
        ResDescriptionAttribute(Res.DbCommand_CommandText), 
        ]
        abstract public string CommandText { 
            get; 
            set;
        } 

        [
        ResCategoryAttribute(Res.DataCategory_Data),
        ResDescriptionAttribute(Res.DbCommand_CommandTimeout), 
        ]
        abstract public int CommandTimeout { 
            get; 
            set;
        } 

        [
        DefaultValue(System.Data.CommandType.Text),
        RefreshProperties(RefreshProperties.All), 
        ResCategoryAttribute(Res.DataCategory_Data),
        ResDescriptionAttribute(Res.DbCommand_CommandType), 
        ] 
        abstract public CommandType CommandType {
            get; 
            set;
        }

        [ 
        Browsable(false),
        DefaultValue(null), 
        DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), 
        ResCategoryAttribute(Res.DataCategory_Data),
        ResDescriptionAttribute(Res.DbCommand_Connection), 
        ]
        public DbConnection Connection {
            get {
                return DbConnection; 
            }
            set { 
                DbConnection = value; 
            }
        } 

        IDbConnection IDbCommand.Connection {
            get {
                return DbConnection; 
            }
            set { 
                DbConnection = (DbConnection)value; 
            }
        } 

        abstract protected DbConnection DbConnection { // V1.2.3300
            get;
            set; 
        }
 
        abstract protected DbParameterCollection DbParameterCollection { // V1.2.3300 
            get;
        } 

        abstract protected DbTransaction DbTransaction { // V1.2.3300
            get;
            set; 
        }
 
        // @devnote: By default, the cmd object is visible on the design surface (i.e. VS7 Server Tray) 
        // to limit the number of components that clutter the design surface,
        // when the DataAdapter design wizard generates the insert/update/delete commands it will 
        // set the DesignTimeVisible property to false so that cmds won't appear as individual objects
        [
        DefaultValue(true),
        DesignOnly(true), 
        Browsable(false),
        EditorBrowsableAttribute(EditorBrowsableState.Never), 
        ] 
        public abstract bool DesignTimeVisible {
            get; 
            set;
        }

        [ 
        Browsable(false),
        DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), 
        ResCategoryAttribute(Res.DataCategory_Data), 
        ResDescriptionAttribute(Res.DbCommand_Parameters),
        ] 
        public DbParameterCollection Parameters {
            get {
                return DbParameterCollection;
            } 
        }
 
        IDataParameterCollection IDbCommand.Parameters { 
            get {
                return (DbParameterCollection)DbParameterCollection; 
            }
        }

        [ 
        Browsable(false),
        DefaultValue(null), 
        DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), 
        ResDescriptionAttribute(Res.DbCommand_Transaction),
        ] 
        public DbTransaction Transaction {
            get {
                return DbTransaction;
            } 
            set {
                DbTransaction = value; 
            } 
        }
 
        IDbTransaction IDbCommand.Transaction {
            get {
                return DbTransaction;
            } 
            set {
                DbTransaction = (DbTransaction)value; 
            } 
        }
 
        [
        DefaultValue(System.Data.UpdateRowSource.Both),
        ResCategoryAttribute(Res.DataCategory_Update),
        ResDescriptionAttribute(Res.DbCommand_UpdatedRowSource), 
        ]
        abstract public UpdateRowSource UpdatedRowSource { 
            get; 
            set;
        } 

        abstract public void Cancel();

        public DbParameter CreateParameter(){ // V1.2.3300 
            return CreateDbParameter();
        } 
 
        IDbDataParameter IDbCommand.CreateParameter() { // V1.2.3300
            return CreateDbParameter(); 
        }

        abstract protected DbParameter CreateDbParameter();
 
        abstract protected DbDataReader ExecuteDbDataReader(CommandBehavior behavior);
 
        abstract public int ExecuteNonQuery(); 

        public DbDataReader ExecuteReader() { 
            return (DbDataReader)ExecuteDbDataReader(CommandBehavior.Default);
        }

        IDataReader IDbCommand.ExecuteReader() { 
            return (DbDataReader)ExecuteDbDataReader(CommandBehavior.Default);
        } 
 
        public DbDataReader ExecuteReader(CommandBehavior behavior){
            return (DbDataReader)ExecuteDbDataReader(behavior); 
        }

        IDataReader IDbCommand.ExecuteReader(CommandBehavior behavior) {
            return (DbDataReader)ExecuteDbDataReader(behavior); 
        }
 
        abstract public object ExecuteScalar(); 

        abstract public void Prepare(); 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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DBCommand.cs source code in C# .NET

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